Hedge cutter



Dec. 8, 1925- 1,564,990

. Y R. W.'WITTEMANN HEDGE CUTTER Filed Sept. 2'?. 1921 s SheeisSheet 1 &

3 Sheets-Sheet 2 Dec. 8, I925. 1,564,990

R. w. WIITTEMANN EDGE CUTTER Filed Sept. 1921 3 Sheets-Sheet 3 aupento'c 8g WWW/WM @[Hormmy Patented Dec. 8, 1925.

"UNITE STA TES PATaNroF ICE;v

R DOLPH ,wnnnnmn wITTEMAnmon nnooiiLYn, NEW onK.

nnnon Application filed September To all whom it may concern: v

Be it known that I, RUDOLPH \VENDELIN \VITTEMANN, acitizen of the United States, residing in the borough of Brooklyn, Kings County, in the State of New Y ork, have in the like may be quickly trimmed, and in a more even and regular way than is possible with the shears usually employed.

Further, said invention has foritsabject to provide an apparatus of the character I specified in which the cutting member may be positively driven from'a suitable source of power either carried directly by the '1na-.

chine or arranged independently thereof and connected therewith by flexible shaftmg. 7

Further, said invention has for its object to provide an apparatus of the character specified which is comparatively small in size, readily portable, and in which the parts which are subject to wear may be easily removed for sharpening or replacement.

Other objects will in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends my invention consists in the novel details of construction, and in the combination, connection and arrangement of parts hereinafter more fully described and then pointed out in the claims. v

In the accompanying drawings forming part of this specification, wherein like numerals of reference indicate like 'p'arts Figure 1 is a front view showing one form of apparatus constructed according to, embodying my said invention; V

Fig. 2 is a similar view with the front plate or cover removedto show the interior mechanism; r

Fig. 3 is a longitudinal section taken on the line 3-3, of Fig. 2;

Fig. l is a transverse vertical section taken on the line l4 of Fig. 2;

and

- Curran.

27, 1921'. Serial No. 503,555.

"Fig. 5-is'a detail perspective -view 'of the front plate or cover of the; apparatus;

F ig.'6;isa front view showing a-modifiedj construction in, which the apparatus isdrivenby an electric thereto; f g

Fig. v7 is a longitudinal section showing a-modified formof cutting mechanism and means foractuating the same,

Fig. 8 vis a back. view thereof, partlly.

broken away, and

motor I secured directly .Fig. 9 is a vert cal transversesection on theline 88 of Fig. 7. 1

i In the' main construction illustrated at Figs. 1 to 5inclusive, 1O designates an open "frame or casing comprising rounded end portions 11, and longitudinal connecting membersl2, 13, of which. the member 13 is f provided with'a series of forwardly. t d; ing teeth 14. a

15 denotes a cover or front plateffcom prising circular end members 16,- reg1 s tering-with the roundedend' portions 11 of.

the frame 10. .The end members 16 are con--- 1 i I neoted together attheir upper portionsby' an L-shaped longitudinal member 17 registering" with the longitudinal connectingmember 12 of the frame orcasing 10. The lower portions of said circular end members 16 are connected by a flat longitudinal member- 18 which is also provided-with forward ly' extending teeth 19 registering with the teeth 14 of the frame or casing member 13.

. The cover plate 15 is secured at its circular endmembers-16 to therounded end portions 11. of the frame 10 by screws 21.

To the outer sides of the casings formed by the rounded end portions 11 and the'circular endmembers 16. are secured handles 22, 22 7 One of said roundediend portionsqll is provided atits rear'with a bearing 23 in which is mounted a shaftx24c having its reduced inner end provided with a. pulley 25, and its other'end adapted forsecure:

tending from a suitable motor. r

The inner wall of the other end portion 11 is provided with a, horizontal recess 27 in which isguided a stud28 arrangedat m-ent-toone end of a flexibleshaftQG exone side of a forked bearing member 29in which is mounted a pulley '25 correspond ing to the pulley 25. The forked bearing member 29 is provided with a stem 30 whichv extends through the side ofcthe casing and into the handle 22, which is hollow, and upon said stem is disposed a spring 31 and adjusting nuts 32, 33, in order toyieldably support the pulley and to permit of the adjustment therefor in consequence of wear. The outer grooved surfaces of the pulleys- 25, 25 are provided withfacings of rubber or analogous material 84 whereby to increase-the friction between said pulleys and an'endless saw which passes over the same, and'through the hollow upper longitudinal casing part'formed by the longitudinal members 12, 17, and intermediate the lower toothed connecting members 13, 18.

In order to prevent the lateraldisplacd ment of the endless saw 35, and in order to reinforce the same, the lower longitudinal connecting members 13 ofth'e casing 10 18 provided with a recessed oiiset 36' within which is mounted a grooved roller 3''? to receive-the rear edge of said endless saw In the modification illustrated at Fig. 6, the apparatus prop'er is Constructed as hereinabovede's'cribed, except tliat'the flexible shaft 26* is dispensed with and in place thereof the shaft 26 of an electric motor 7 26 is Connected directly to the shaft 24 upon which the pulley 25 is lined. I

In the Construction illustrated'at Fi s. 7, 8 and 9,'th e apparatus comprises a. base frame or member 40 having recessed ends 41, and forwardly projecting teeth 42 intermediate said ends.- The base member 40 adjusting nuts 49 whereby to seeure said saw blade under proper tension upon the car- The back of the base member 40 is suit ably recessed to accommodate a stud 50 extending rearwardly from the carriage 44.. 51 denotes a link which is pivotally secured at one end to said'st-ud 50, and is provided at its other end with a strap 52 embracing an eccentric 53 fixed upon the shaft 5.4 of an electric motor 55 secured centrally to the back of the base frame 40.

56 denotes a cover plate which is secured by screws 56 to the base frame or member 40, and provided at its front edge with forwardlyprojecting teeth 57 registering with the teeth 42 of the base frame. Between the teeth of the base frame and the cover plate, the saw blade 46 is adapted to be re-' ciproc'ated by the motor 55 through the interposed eccentric 53 and link 52.

The operation of the apparatus will be engagementwith the hedge or other plant to be out. As the branches or stems pass between the upper and lower sets of teeth, the saw blade, owing to the rapidity of its movement, will instantly sever the portions of said branches or stems projecting above thesets of teeth between which the saw blade travels or reciprocates.

Having thus describedmy said invention what I claim and desire to secure by Letters Patent is s i V I 1. An apparatus of the character described, comprising a casing including a frame portion and'a cover portionsecured together, a cutting member guided between said casing portions, means movably mounted within said casing for supporting said cutting member, a toothed portion on said casing cooperating with said cutting member, and means for actuating the sup porting means for said cutting member, substantially as specified.

2. An apparatus of the character described, comprising a casing-like frame, a toothed member arranged longitudinally along the front of said frame, a cutting member mounted in said frame and cooperating with said toothed member, means inovably mounted in said frame for supporting said cuttingmember, a removable plate for covering said cutting member and said supporting means, a toothed part thereon extending over the edge of said cutting member and cooperating therewith and with said toothed member, and means for actuating said supporting means, substantially as specified.

3. An apparatus of the character described, comprising an elongated casing-like frame, a toothed member thereon arranged longitudinally of the frame, a cutting member' therein having a single flat strip portion cooperating with said toothed member and movable longitudinally thereof, means for supporting said cutting member, means for adjustablyv tensioning said cutting member on said supporting means, handles secured to said frame at opposite ends for holding the same, means for actuating said supporting means, and a plate removably secured to said frame for covering said cutting member and said supporting means, said plate havii'ig a toothed part extending over and beyond the cutting edge of said cutting member and registering with said toothed member, substantially asspecified. V

4. An apparatus of the character de scribed, comprising a frame, casings at opposite ends thereof, a toothed member intermediate said casings, revolublesupports' in said casings, an endles's'cutting member extending over said'supports and cooperating with said toothed member, a cover plate for said frame and 'fcasings, whereby said cutting member and said, supports are protected, a toothed portion 01183.16. cover'plate,

arranged longitudinally "thereof, extending cutting, and handles for carrying'said frame, substantially as specified.

6. An apparatus of the character described, comprising an elongated casing-like portable frame, asingle pair of pulleys mounted therein at opposite ends, an endless cutting member extending around said pulleys and protected by said frame, spring means associated with one of said pulleys and adjustable exteriorly of the casingfor tensioning said cutting member, means for actuating said cutting member, and means for carrying said frame and including a handle protectingsaid spring means, substantially as specified.

7.- An apparatus of the character described, comprising a frame, a pair of pulleys mounted thereon in spaced relation, an endless cutting member extending over said pulleys, spring means maintaining said cut-ting member yieldingly under tension, a toothed member cooperating with said cutting member, and means for actuating said cutting member, substantially as specified.

8. An apparatus of the character described, comprising a frame, a pair of pulleys mounted thereon in spaced relation, spring means tending to separate said pulleys, and endless cutting member extending over said pulleys, and means for actuating said pulleys and cutting member, substan tially as specified.

9. An apparatus of the character de scribed, comprising a frame, pulleys mount ed at opposite ends of said frame, an endless cutting member extending over said pulleys and comprising spaced intermediate portions, a toothed member cooperating with one of said intermediateportions of said cutting member, and a grooved roller mounted on said frame and. engaging the rear edge of said portions of said cutting member cooperating with said toothed "11' e1nbcr,-sub

stantially as specified,

- 10. An apparatus of. the. cliaracter' described, c'omprisinga frame, pulleys mount ed'at opposite ends-of said fran'ie'," an fendless cutting :.member extending over 'Sitld pulleys and c'oniprising spaced interi'ned-iatej portions, spring means'for maintaining 'saidj' cuttln'g member yieldingly tens 'oned, a toothedmember cooperat ng with Jone. of

.said intermediate portions of said cutting member,'and a roller mounted on said frame and engaging t-he'rear edge ofsaid portions I of said "cutting member cooperating with,

said toothed member, "substantially as: spec: ified.

11.'An apparatus. of the character described, comprising an elongated casinglike portable frame, a single pair of pulleys mounted on said frame in spaced relation, an endless cutting member extending over said pulleys and having spaced intermediate portions .protected by said frame,- spring means for tensioning said cutting member, toothed members arranged above and below one of said intermediate portions of said cutting member, means engagingthe rear edge of said portions of said cutting member located between said toothed members, means for actuating said cutting member, and handles for carrying. said frame,

substantially as specified.

12. An apparatus of the character de scribed, comprising an elongated casinglike frame, a single pair of pulleys mounted in said casing at opposite ends, an endless cutting member extending over said pulleys and having spaced intermediate portions, spring means acting on one of said pulleys for yieldingly maintaining said cutting member under tension, means for actuating said outtingmember, and handles for carrying said frame, substantiallyas specified. v V

13. An apparatus of the character. described, comprising an elongated casinglike portable frame, a single, pair of pulleys mounted in said frame at opposite ends and protected thereby, an endless cutting member extending around said pulleys and, including spaced intermediate portions arranged longitudinally of said frame and protected thereby, members arranged above and below one of said intermediate portions to protect the same and to cooperate there with to cause the cutting, said frame being open between said intermediate portions of said cutting member to permit the material out to pass therethrough, handles forcarrying said frame, and means for actuating said cutting member, substantially as specified.

14. An apparatus of the character described, comprising a frame, casings at opposite ends of said frame, a toothed member arranged longitudinally of said frame between said casings, a pulley rotatably mounted in one of said vcasings, means 01- rotating said pulley, abearing slidably mounted in the other of said casings and extending exteriorly thereof, a pulley rotataably mountedon said bearing within the casing of the same, an endless cutting men1- ber extending over said pulleys and having intermediate portions extending over and cooperating with said toothed member, a

spring interposed between said easing and the exterior part of said bearin and tending to tension said cutting mein er, v cover plate secured to said frame and easing-s for closing the same, a toothed .nieinber thereon ex ending OYQI' said port-ions of said eutting member cooperating With said first named toother membelz, a roller on said frame engaging the rear edge of said portions of said cutting member cooperating with said toothed members, and handles secured to opposite ends of said frame, one of said handles enclosing said spring and forming a protection therefor, substantially as speci- Signed at the city of New York, county and State of New York, this 95th day of September, one thousand nine hundred and 

